.bg1{
    width: 1340px;
    height: 160px;
    background: url("../img/1.jpg");
    background-size: 100%, 100%;
}
.bg2{
    width: 1340px;
    height: 545px;
    background: url("../img/2.jpg");
    background-size: 100%, 100%;
}
.bg3{
    width: 1345px;
    height: 170px;
    background: url("../img/3.jpg");
    background-size: 100%, 100%;
}
.bg4{
    width: 1352px;
    height: 304px;
     background: url("../img/4.jpg");
    background-size: 100%, 100%;
 }
.bg5{
    width: 1350px;
    height: 250px;
    background: url("../img/5.jpg");
    background-size: 100%, 100%;
}
